
Reactii de combinare in chimie
Authored by licuta balan
Chemistry
8th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este o reactie de combinare?
O reactie de combinare este o reactie in care un singur element se descompune.
O reactie de combinare este o reactie in care substantele se separa pentru a forma mai multe produse.
O reactie de combinare implica doar reactii fizice, nu chimice.
O reactie de combinare este o reactie chimica in care doua sau mai multe substante se unesc pentru a forma un singur produs.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este formula generala a unei reactii de combinare?
A + B → AB
A + B → B
A + B → A
A + B → A + B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care sunt produsele unei reactii de combinare intre hidrogen si oxigen?
Metan (CH4)
Dioxid de carbon (CO2)
Oxigen (O2)
Apa (H2O)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de legaturi chimice se formeaza in reactiile de combinare?
Legaturi de hidrogen
Legaturi ionice
Legaturi metalice
Legaturi covalente
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De ce este importanta studiul reactiilor de combinare in chimie?
Este folosit doar în laboratoare de cercetare.
Este important pentru studierea reacțiilor de descompunere.
Este important pentru înțelegerea sintezei compușilor și aplicarea acestora în industrie și medicină.
Nu are nicio relevanță în chimie.
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